Leaving a crying baby alone in the middle of the night is hard to do, but it's exactly what brand new research from Temple finds is best for everyone, especially the baby. "Mothers who rush to their babies in the middle of the night because they are crying are doing a disservice to their babies. They're interfering with the babies' learning to self-soothe and go back to sleep," said Marsha Weinraub, professor and chair of psychology at Temple and the study's lead author.